200 Top SEO Ranking Factors February 2021

TOP SEO Factors for 2021-2 previous - today - next

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Distinct Entities Used Diversity	-0.3	62	29	90 %	60 %
2	Variations in HTML Tags Relevancy	-0.25	1015	167	88 %	95 %
3	Search Result Has Publish Date	-0.24	1	1	83 %	15 %
4	Number of Factors Used Diversity	-0.24	204	142	96 %	91 %
5	Variations in Div Tags Relevancy	-0.24	595	122	87 %	93 %
6	LSI Words in Sentences Relevancy	-0.23	3607	639	87 %	94 %
7	Variations in Body Tags Relevancy	-0.23	850	147	81 %	95 %
8	Entities in Title Tag Relevancy	-0.23	8	3	79 %	57 %
9	Term Frequency Relevancy	-0.23	8	6	88 %	94 %
10	Variations in A Tags Relevancy	-0.22	162	29	80 %	94 %
11	Entities in H2 Tags	-0.22	17	6	54 %	59 %
12	Variations in P Tags Relevancy	-0.22	159	34	79 %	92 %
13	Variations in H1-H6 Tags Relevancy	-0.22	24	9	81 %	94 %
14	Variations in H1, H2, and H3 Tags Relevancy	-0.21	20	7	80 %	93 %
15	Variations in Sentences Relevancy	-0.21	107	22	77 %	89 %
16	Variations in LI Tags Relevancy	-0.21	81	20	72 %	93 %
17	Variations in A Tag HREF Attributes Relevancy	-0.2	355	50	74 %	94 %
18	Variations in H1 and H2 Tags Relevancy	-0.2	12	5	78 %	89 %
19	Variations in Search Result Display URL Relevancy	-0.2	3	2	86 %	82 %
20	Variations in Search Result Link Text Relevancy	-0.2	3	2	86 %	83 %
21	LSI Words in Title Tag Relevancy	-0.2	16	7	85 %	86 %
22	Entities in H3 Tags	-0.2	29	6	45 %	60 %
23	Unabridged Word Count Size	-0.19	7700	1912	94 %	89 %
24	Entities in Meta Description Tag Relevancy	-0.19	9	4	62 %	56 %
25	Clean Text Kilobytes Size	-0.19	42	12	91 %	88 %
26	Number of HTML Tags Size	-0.19	2573	869	95 %	85 %
27	Word Count Size	-0.19	5652	1467	94 %	88 %
28	Variations in H2 Tags Relevancy	-0.19	11	3	50 %	91 %
29	Variations in Script Tags Relevancy	-0.19	201	31	66 %	93 %
30	Exact Matches in Body Tag Relevancy	-0.19	331	13	36 %	94 %
31	SpyFu Organic Value Authority	-0.18	255293	6975	37 %	17 %
32	Number of HTTPS Links Authority	-0.18	545	148	90 %	85 %
33	Body Tag Size Kilobytes Size	-0.18	202	78	82 %	91 %
34	Page Size Kilobytes Size	-0.18	314	135	95 %	87 %
35	Leading Variations in H1-H6 Tags Relevancy	-0.18	18	3	52 %	90 %
36	Ahrefs Referring Domains Authority	-0.18	1164	44	52 %	47 %
37	Ahrefs Referring Class C Addresses Authority	-0.18	619	34	52 %	48 %
38	Ahrefs NoFollow Backlinks Authority	-0.18	35808	338	47 %	47 %
39	Ahrefs Referring IP Addresses Authority	-0.18	943	41	52 %	48 %
40	LSI Words in H2 Tags Relevancy	-0.18	77	18	66 %	92 %
41	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	13	2	49 %	89 %
42	Number of Sentences Size	-0.18	266	46	92 %	83 %
43	LSI Words in Meta Description Tag Relevancy	-0.18	41	11	67 %	88 %
44	Variations in the Title Tag Relevancy	-0.18	4	2	81 %	80 %
45	Number of Internal Links Authority	-0.18	531	139	91 %	85 %
46	Exact Matches in the HTML Tag Relevancy	-0.18	331	9	37 %	93 %
47	Number of Links Authority	-0.17	549	156	92 %	83 %
48	Number of DoFollow Links Authority	-0.17	538	150	92 %	82 %
49	Clean Keyword Density in the HTML Tag Relevancy	-0.17	8	5	90 %	28 %
50	Ahrefs Backlinks Authority	-0.17	519580	4642	53 %	47 %
51	Variations in Nav Tags Relevancy	-0.17	186	19	46 %	89 %
52	Variations in Absolute URLs Relevancy	-0.17	351	49	68 %	91 %
53	Ahrefs Text Backlinks Authority	-0.17	519570	4593	52 %	47 %
54	Ahrefs Referring Pages Authority	-0.17	519580	4606	52 %	47 %
55	Keywords in pages top 10 most used phrases	-0.17	5	2	71 %	88 %
56	Variations in Meta Description Relevancy	-0.17	5	2	62 %	87 %
57	Variations in ALT Attributes Relevancy	-0.17	55	8	55 %	88 %
58	SpyFu Organic Results Authority	-0.17	1495	114	40 %	17 %
59	Entities in Sentences Relevancy	-0.17	358	85	57 %	96 %
60	Keywords in pages top 5 most used phrases	-0.17	4	2	62 %	89 %
61	SpyFu Organic Clicks Authority	-0.17	70912	1703	38 %	17 %
62	Number of Heading Tags Size	-0.17	54	22	91 %	87 %
63	Entities in H1 Tags	-0.16	23	2	64 %	54 %
64	Number of P Tags Size	-0.16	230	38	89 %	86 %
65	Number of Questions In Headings Size	-0.16	6	2	36 %	66 %
66	Number of Questions Size	-0.16	30	5	65 %	85 %
67	Number of Absolute URLs Authority	-0.16	438	146	93 %	84 %
68	Search Result Publish Date	-0.16	2014967709	1892960342	91 %	46 %
69	Variations in Span Tags Relevancy	-0.16	61	10	59 %	91 %
70	Entities in the HTML Tag Relevancy	-0.16	2173	275	58 %	94 %
71	LSI Words in H1 Tags Relevancy	-0.16	31	6	74 %	82 %
72	Variations in Search Result URL Path Relevancy	-0.16	5	2	63 %	83 %
73	Variations in Search Result URL Relevancy	-0.16	5	2	64 %	85 %
74	Variations in Section Tags Relevancy	-0.15	70	19	38 %	85 %
75	Exact Matches in H1-H6 Tags Relevancy	-0.15	11	2	27 %	91 %
76	LSI Words in H3 Tags Relevancy	-0.15	106	18	59 %	91 %
77	Variations in H3 Tags Relevancy	-0.15	12	3	38 %	91 %
78	Number of Images Size	-0.15	173	29	90 %	80 %
79	Variations in the Canonical URL Relevancy	-0.15	5	2	52 %	85 %
80	Variations in H1 Tags Relevancy	-0.15	9	2	67 %	82 %
81	Variations in Search Result Document File Name Relevancy	-0.15	5	2	64 %	70 %
82	Number of Images with ALT Text Size	-0.15	158	19	84 %	82 %
83	Entities in H4 Tags	-0.15	13	3	25 %	57 %
84	Number of H3 Tags Size	-0.15	29	8	69 %	86 %
85	Variations in OpenGraph Description Relevancy	-0.15	9	2	52 %	83 %
86	Variations in Main Tags Relevancy	-0.15	361	44	31 %	84 %
87	Number of H2 Tags Size	-0.15	17	7	75 %	87 %
88	Keywords in pages top 3 most used phrases	-0.15	3	1	52 %	88 %
89	Ahrefs Dofollow Backlinks Authority	-0.15	514140	4205	41 %	45 %
90	Variations Making Whole LI Tags Relevancy	-0.15	5	1	27 %	84 %
91	Leading Variations in H2 Tags Relevancy	-0.15	5	1	23 %	85 %
92	Variations in TITLE Attributes Relevancy	-0.15	55	10	41 %	89 %
93	Leading Variations in H1 Tags Relevancy	-0.15	3	1	31 %	79 %
94	Ahrefs Has NoFollow Backlinks Authority	-0.15	1	1	47 %	48 %
95	TF/IDF Relevancy	-0.14	1	1	70 %	80 %
96	Number of Questions In H2 Tags Size	-0.14	3	1	21 %	80 %
97	Has Entities in H2 Tags Relevancy	-0.14	1	1	56 %	56 %
98	Exact Matches in A Tags Relevancy	-0.14	40	3	23 %	90 %
99	Variations in Footer Tags Relevancy	-0.14	67	7	36 %	86 %
100	Variations in OpenGraph Title Relevancy	-0.14	6	2	58 %	81 %
101	Variations making whole A Tags Relevancy	-0.14	10	2	34 %	87 %
102	Variations in First 100 Words Relevancy	-0.14	25	7	68 %	80 %
103	Ahrefs Rank Authority	-0.14	41	11	54 %	28 %
104	Title Tag Has Entities Relevancy	-0.14	1	1	78 %	46 %
105	Variations in Strong Tags Relevancy	-0.14	17	4	37 %	84 %
106	Headings Has Question Other	-0.14	1	1	37 %	78 %
107	Ahrefs Has Text Backlinks Authority	-0.14	1	1	50 %	46 %
108	Search Result Uses HTTPS Other	-0.14	1	1	88 %	72 %
109	Exact Matches in Sentences Relevancy	-0.14	23	2	21 %	89 %
110	Ahrefs Has Backlinks Authority	-0.14	1	1	51 %	46 %
111	Leading Variations in Title Tag Relevancy	-0.14	1	1	36 %	79 %
112	Exact Matches in Title Tag Relevancy	-0.14	2	1	25 %	85 %
113	Variations in Article Tags Relevancy	-0.14	131	20	33 %	76 %
114	Meta Description Tag Has Entities Relevancy	-0.14	1	1	63 %	49 %
115	Has Entities in H3 Tags Relevancy	-0.14	1	1	46 %	53 %
116	Inline JavaScript Kilobytes Size	-0.13	94	28	90 %	83 %
117	Variations in H4-H6 Tags Relevancy	-0.13	8	2	24 %	82 %
118	Word Count in Meta Description Size	-0.13	64	23	72 %	75 %
119	Variations Making Whole Span Tags Relevancy	-0.13	49	1	19 %	84 %
120	Has Entities in H1 Tags Relevancy	-0.13	1	1	65 %	49 %
121	Variations in H4 Tags Relevancy	-0.13	6	1	18 %	84 %
122	Ahrefs Has Dofollow Backlinks Authority	-0.13	1	1	39 %	43 %
123	Variations in the last 100 words Relevancy	-0.13	19	4	57 %	81 %
124	Meta Description Length Size	-0.13	350	133	72 %	74 %
125	Leading Variations in H3 Tags Relevancy	-0.13	7	1	17 %	84 %
126	Has JSON-LD Answer	-0.13	1	1	3 %	53 %
127	Has JSON-LD Question	-0.13	1	1	3 %	53 %
128	Number of Nofollow Links Authority	-0.13	49	7	38 %	79 %
129	Variations in I Tags Relevancy	-0.12	11	3	24 %	83 %
130	Ahrefs Domain Rating Authority	-0.12	76	31	59 %	32 %
131	Has Canonical URL Authority	-0.12	1	1	76 %	77 %
132	DomDetailer Moz PA Authority	-0.12	62	27	62 %	25 %
133	Variations in ID Attributes Relevancy	-0.12	10	1	13 %	86 %
134	LSI Words in H4 Tags Relevancy	-0.12	68	9	38 %	83 %
135	Number of Questions In H3 Tags Size	-0.12	4	1	15 %	80 %
136	Variations in Search Result Summary Relevancy	-0.12	8	3	84 %	72 %
137	DomDetailer Majestic Referring Subnets Authority	-0.12	44954	7791	62 %	26 %
138	DomDetailer Majestic IPs Authority	-0.12	190888	30509	62 %	26 %
139	Percentage of DoFollow Internal Links Authority	-0.12	94	81	91 %	72 %
140	Variations making whole H1-H6 Tags Relevancy	-0.12	2	1	15 %	79 %
141	DomDetailer Majestic Referring Domains Authority	-0.12	1034789	199153	63 %	27 %
142	Variations making whole H1, H2, and H3 Tags Relevancy	-0.12	2	1	14 %	77 %
143	Has FavIcon Technology	-0.12	1	1	77 %	71 %
144	Exact Matches in Meta Description Relevancy	-0.12	3	1	16 %	86 %
145	Variations in Class Attributes Relevancy	-0.12	84	5	26 %	84 %
146	Exact Matches in H2 Tags Relevancy	-0.12	4	1	12 %	90 %
147	Load Time Milliseconds Performance	-0.12	72387	2545	96 %	67 %
148	Variations in Meta Twitter Description Relevancy	-0.12	6	1	22 %	78 %
149	Number of External Links Authority	-0.12	56	18	86 %	76 %
150	Head Size Kilobytes Size	-0.12	88	34	89 %	79 %
151	Number of H4 Tags Size	-0.12	13	5	47 %	77 %
152	Ahrefs Internal Links Authority	-0.12	467	78	52 %	44 %
153	Number of US Phone Numbers Trust	-0.12	115	8	41 %	74 %
154	Has Privacy Policy Trust	-0.12	1	1	58 %	79 %
155	Number of Twitter Accounts Authority	-0.12	2	1	44 %	69 %
156	Search Result Link Text Length Size	-0.11	76	54	96 %	68 %
157	DomDetailer Majestic Links Authority	-0.11	120816074	3720297	63 %	27 %
158	Has Meta Description Relevancy	-0.11	1	1	73 %	74 %
159	Has JSON-LD Organization	-0.11	1	1	30 %	68 %
160	Exact Matches in H1 Tags Relevancy	-0.11	2	1	19 %	84 %
161	Flesch Kincaid Reading Grade Level Other	-0.11	7	3	84 %	50 %
162	Inline CSS Kilobytes Size	-0.11	66	22	57 %	76 %
163	Number of Social Accounts Authority	-0.11	4	2	52 %	72 %
164	Number of NoFollow External Links Authority	-0.11	22	3	26 %	77 %
165	DomDetailer Moz DA Authority	-0.11	79	26	62 %	25 %
166	DomDetailer Majestic CF Authority	-0.11	60	23	61 %	26 %
167	Variations in Meta Twitter Content Relevancy	-0.11	2	1	25 %	70 %
168	Has Entities in H4 Tags Relevancy	-0.11	1	1	26 %	49 %
169	Number of Questions In H4 Tags Size	-0.11	2	1	6 %	69 %
170	Number of DoFollow External Links Authority	-0.11	43	16	84 %	76 %
171	Ahrefs Word Count Size	-0.11	4262	1056	49 %	36 %
172	DomDetailer Facebook Shares Authority	-0.11	5712685	-2264576	57 %	26 %
173	Number of Images without ALT Text Size	-0.11	40	11	68 %	74 %
174	Number of Forms Technology	-0.11	12	3	71 %	77 %
175	Title Has Sentiment Words Other	-0.11	1	1	14 %	73 %
176	Percentage of NoFollow Links Authority	-0.11	19	5	37 %	74 %
177	Has Apple Touch Icon Technology	-0.11	1	1	44 %	68 %
178	Has Terms of Service Trust	-0.11	1	1	38 %	75 %
179	Has JSON-LD ImageObject	-0.11	1	1	33 %	63 %
180	Number of Instagram Pages Authority	-0.11	6	1	35 %	70 %
181	Number of Facebook Accounts Authority	-0.11	2	1	34 %	69 %
182	Has Meta Twitter Site Authority	-0.11	1	1	21 %	62 %
183	Number of Social Pages Authority	-0.11	7	2	54 %	69 %
184	Has JSON-LD Website	-0.11	1	1	34 %	61 %
185	Variations in Em Tags Relevancy	-0.1	5	1	12 %	74 %
186	Variations making whole H1 Tags Relevancy	-0.1	1	1	9 %	76 %
187	Title Word Count Size	-0.1	13	9	93 %	63 %
188	Variations in Figure Tags Relevancy	-0.1	187	5	12 %	78 %
189	DomDetailer Moz Rank Authority	-0.1	8	3	61 %	25 %
190	DomDetailer Majestic TF Authority	-0.1	57	17	57 %	25 %
191	Has OpenGraph Type Relevancy	-0.1	1	1	62 %	68 %
192	Leading Variations in Meta Description Relevancy	-0.1	1	1	12 %	78 %
193	Variations Making Whole Strong Tags Relevancy	-0.1	2	1	8 %	79 %
194	Has Copyright Trust	-0.1	1	1	74 %	70 %
195	Average Words Per Sentence Size	-0.1	186	44	92 %	71 %
196	Leading Variations in H4-H6 Tags Relevancy	-0.1	6	1	11 %	80 %
197	Variations in Button Tags Relevancy	-0.1	7	1	5 %	80 %
198	Search Result Summary Length Size	-0.1	524	216	89 %	59 %
199	Has Schema Markup Relevancy	-0.1	1	1	51 %	69 %
200	Variations in Value Attributes Relevancy	-0.1	24	2	13 %	77 %

Measures 143171 SEO Factors

141449 Built-In SEO Factors

132381 On-page SEO Factors

9068 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

SEO Factor Class

SEO Factor Type

Compare Top SEO Factors By Month

TOP SEO Factors for 2021-2 previous - today - next