200 Top SEO Ranking Factors May 2025

TOP SEO Factors for 2025-05 previous

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 Unique Variations Used Diversity	-0.28	33	7	78 %	89 %
2	Number of Top 100 Shared Factors Used Diversity	-0.25	39	29	95 %	93 %
3	Number of Top 200 Shared Factors Used Diversity	-0.25	52	39	95 %	93 %
4	Number of Unique LSI Words Used Diversity	-0.25	1018	293	83 %	77 %
5	Entities in Title Tag Relevancy	-0.25	7	3	65 %	89 %
6	Number of Top 50 Shared Factors Used Diversity	-0.24	17	12	94 %	90 %
7	Variations in Search Result Link Text Relevancy	-0.24	14	2	74 %	84 %
8	Variations in Search Result Display URL Relevancy	-0.24	14	2	74 %	85 %
9	Number of Distinct Entities Used Diversity	-0.24	67	27	76 %	91 %
10	Variations in Body Tags Relevancy	-0.23	156621	857	76 %	91 %
11	Variations in the Title Tag Relevancy	-0.23	19	2	63 %	84 %
12	Variations in H1 and H2 Tags Relevancy	-0.23	165	5	61 %	89 %
13	Variations in HTML Tags Relevancy	-0.23	156621	849	76 %	92 %
14	Variations in H1, H2, and H3 Tags Relevancy	-0.23	237	7	63 %	90 %
15	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	5 %	72 %
16	Variations in Div Tags Relevancy	-0.23	35415	249	72 %	90 %
17	Variations in H1-H6 Tags Relevancy	-0.23	251	8	64 %	89 %
18	Variations in Sentences Relevancy	-0.23	3790	46	69 %	92 %
19	Clean Keyword Density in the HTML Tag Relevancy	-0.23	189	4	67 %	82 %
20	Load Time Milliseconds Performance	-0.22	11606	1701	84 %	92 %
21	Search Result Domain is .com Other	-0.22	1	1	5 %	72 %
22	Variations in P Tags Relevancy	-0.22	6005	56	67 %	92 %
23	Number of Factors Used Diversity	-0.22	301	178	95 %	89 %
24	Term Frequency Relevancy	-0.22	6	3	76 %	91 %
25	Variations in Search Result Document File Name Relevancy	-0.21	13	1	42 %	82 %
26	Variations in H1 Tags Relevancy	-0.21	56	1	52 %	85 %
27	Variations in Search Result URL Relevancy	-0.21	24	2	50 %	80 %
28	Variations in Search Result URL Path Relevancy	-0.21	15	1	44 %	83 %
29	Variations in Meta Description Relevancy	-0.2	95	2	53 %	85 %
30	Variations in H2 Tags Relevancy	-0.2	110	4	45 %	89 %
31	Variations in First 100 Words Relevancy	-0.2	188	7	62 %	86 %
32	Variation Density in Top 30KB Relevancy	-0.2	349	3	57 %	83 %
33	Entities in the HTML Tag Relevancy	-0.2	661	126	71 %	94 %
34	Entities in Sentences Relevancy	-0.2	657	124	69 %	94 %
35	Variation Count in Top 30KB Relevancy	-0.2	5657	57	65 %	86 %
36	Variations in the Canonical URL Relevancy	-0.2	67	2	47 %	84 %
37	Entities in H1 Tags	-0.2	5	2	54 %	87 %
38	Leading Variations in H1-H6 Tags Relevancy	-0.2	25	2	43 %	88 %
39	Variations in LI Tags Relevancy	-0.2	4915	32	65 %	90 %
40	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.2	19	2	41 %	88 %
41	Exact Matches in the HTML Tag Relevancy	-0.2	323	10	28 %	89 %
42	Variations in A Tags Relevancy	-0.19	4405	51	65 %	89 %
43	Entities in H2 Tags	-0.19	38	6	52 %	90 %
44	Variations in OpenGraph Title Relevancy	-0.19	14	1	51 %	81 %
45	TF/IDF Relevancy	-0.19	1	1	54 %	86 %
46	LSI Words in Title Tag Relevancy	-0.19	14	5	62 %	93 %
47	Leading Variations in Title Tag Relevancy	-0.18	1	1	30 %	84 %
48	Variations in OpenGraph Description Relevancy	-0.18	139	2	47 %	85 %
49	Entities in Meta Description Tag Relevancy	-0.18	8	3	55 %	86 %
50	Variations in ALT Attributes Relevancy	-0.18	285	7	45 %	84 %
51	Number of Referring Domains Authority	-0.18	1687	40	42 %	34 %
52	Variations in Absolute URLs Relevancy	-0.18	7234	77	58 %	89 %
53	Variations in Span Tags Relevancy	-0.18	1167	13	49 %	89 %
54	Variations in Script Tags Relevancy	-0.18	72558	252	60 %	90 %
55	Variations in A Tag HREF Attributes Relevancy	-0.18	2357	45	58 %	89 %
56	Leading Variations in H1 Tags Relevancy	-0.18	3	1	27 %	84 %
57	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1735	30	58 %	89 %
58	Number of Includes Technology	-0.17	57	27	81 %	79 %
59	Search Result Number of Dirs in Path Other	-0.17	4	2	70 %	76 %
60	Number of Do Follow Backlinks Authority	-0.17	103552	2712	38 %	34 %
61	Entities in H3 Tags	-0.17	72	6	42 %	88 %
62	Number of Backlinks Authority	-0.17	149098	5010	43 %	36 %
63	Title Tag Has Entities Relevancy	-0.17	1	1	66 %	83 %
64	Has Entities in H1 Tags Relevancy	-0.17	1	1	55 %	81 %
65	Number of No Follow Backlinks Authority	-0.17	146318	2340	34 %	32 %
66	Exact Matches in H1-H6 Tags Relevancy	-0.17	10	1	19 %	85 %
67	Variations in H3 Tags Relevancy	-0.16	72	3	33 %	85 %
68	Variations in Nav Tags Relevancy	-0.16	10809	66	46 %	82 %
69	Variations in Section Tags Relevancy	-0.16	1587	26	37 %	85 %
70	Number of HTML Tags Size	-0.16	2934	1062	84 %	84 %
71	LSI Words in Sentences Relevancy	-0.16	4374	647	62 %	94 %
72	Number of Facebook Pages Authority	-0.16	42	3	63 %	77 %
73	Unabridged Word Count Size	-0.16	83719	1924	84 %	86 %
74	Number of P Tags Size	-0.16	225	40	79 %	83 %
75	Word Count Size	-0.16	83529	1550	83 %	86 %
76	Number of Images Size	-0.16	198	32	80 %	83 %
77	Exact Matches in Sentences Relevancy	-0.16	89	3	20 %	87 %
78	Clean Text Kilobytes Size	-0.16	1215	14	79 %	86 %
79	Exact Matches in Title Tag Relevancy	-0.16	2	1	17 %	84 %
80	Variations in Main Tags Relevancy	-0.16	15470	90	35 %	86 %
81	Number of Sentences Size	-0.16	950	129	83 %	86 %
82	Number of Instagram Pages Authority	-0.15	20	2	47 %	77 %
83	Number of CSS Includes Technology	-0.15	25	10	72 %	78 %
84	Search Result URL Length Size	-0.15	101	63	94 %	57 %
85	Leading Variations in H2 Tags Relevancy	-0.15	7	1	21 %	84 %
86	Exact Matches in Top 30KB Relevancy	-0.15	20	2	17 %	81 %
87	Number of Images with ALT Text Size	-0.15	193	22	75 %	85 %
88	Percentage of DoFollow Internal Links Authority	-0.15	94	74	80 %	82 %
89	Variations in the last 100 words Relevancy	-0.15	185	4	45 %	83 %
90	Number of Questions Size	-0.15	111	11	65 %	84 %
91	Variations in TITLE Attributes Relevancy	-0.15	253	7	32 %	83 %
92	Has JSON-LD Schema Markup Relevancy	-0.15	1	1	54 %	75 %
93	Number of Heading Tags Size	-0.15	107	23	79 %	81 %
94	Variations in Footer Tags Relevancy	-0.15	4462	25	33 %	85 %
95	Inline CSS Kilobytes Size	-0.15	236	65	65 %	84 %
96	LSI Words in H1 Tags Relevancy	-0.15	13	4	54 %	92 %
97	Percentage of DoFollow Links Authority	-0.15	99	85	80 %	84 %
98	Number of Questions In Headings Size	-0.15	13	2	35 %	84 %
99	Page Size Kilobytes Size	-0.15	1367	268	83 %	83 %
100	Variations making whole H1, H2, and H3 Tags Relevancy	-0.15	1	1	13 %	80 %
101	LSI Words in Meta Description Tag Relevancy	-0.15	39	9	51 %	90 %
102	Number of Internal Links Authority	-0.15	482	132	80 %	78 %
103	Number of JavaScript Includes Technology	-0.15	44	18	81 %	81 %
104	Variations making whole H1-H6 Tags Relevancy	-0.15	2	1	15 %	81 %
105	Number of DoFollow Links Authority	-0.15	477	143	81 %	79 %
106	Number of Links Authority	-0.15	493	147	81 %	78 %
107	Number of HTTPS Links Authority	-0.15	493	144	80 %	79 %
108	Has Entities in H2 Tags Relevancy	-0.15	1	1	53 %	80 %
109	Number of H2 Tags Size	-0.15	39	7	71 %	80 %
110	Flesch Kincaid Reading Grade Level Other	-0.14	7	2	91 %	83 %
111	Number of Absolute URLs Authority	-0.14	852	269	83 %	82 %
112	Variations in Strong Tags Relevancy	-0.14	90	3	25 %	85 %
113	Number Of JSON-LD Types Relevancy	-0.14	176	14	57 %	84 %
114	Number of US Phone Numbers Trust	-0.14	636	12	46 %	80 %
115	Variations in Search Result Summary Relevancy	-0.14	52	2	73 %	65 %
116	Variations making whole A Tags Relevancy	-0.14	37	2	27 %	79 %
117	Variations Making Whole LI Tags Relevancy	-0.14	4	1	22 %	78 %
118	Title Word Count Size	-0.14	25	8	82 %	73 %
119	Variations in I Tags Relevancy	-0.14	263	5	25 %	80 %
120	LSI Words in H2 Tags Relevancy	-0.14	136	19	53 %	91 %
121	Number of H3 Tags Size	-0.14	87	9	63 %	79 %
122	Number of Prices Size	-0.14	598	64	67 %	84 %
123	Title Length Size	-0.14	177	51	82 %	74 %
124	Search Result Host Length Size	-0.14	25	18	83 %	77 %
125	Search Result Domain Length Size	-0.14	25	18	83 %	77 %
126	Inline JavaScript Kilobytes Size	-0.14	495	75	81 %	81 %
127	Is Home Page Other	-0.14	1	1	18 %	36 %
128	Number of Facebook Accounts Authority	-0.14	3	1	31 %	73 %
129	Has Canonical URL Authority	-0.14	1	1	71 %	74 %
130	Entities in H4 Tags	-0.14	20	2	21 %	83 %
131	Number of Social Pages Authority	-0.14	81	5	67 %	76 %
132	Variations in Meta Twitter Description Relevancy	-0.14	36	1	21 %	76 %
133	Number of H1 Tags Size	-0.14	4	2	73 %	80 %
134	Word Count in Meta Description Size	-0.14	83	20	67 %	75 %
135	Meta Description Tag Has Entities Relevancy	-0.14	1	1	55 %	77 %
136	Has US Phone Number Trust	-0.14	1	1	46 %	67 %
137	Meta Description Length Size	-0.13	538	122	67 %	77 %
138	Search Result Uses HTTPS Other	-0.13	1	1	83 %	79 %
139	Has Meta Viewport Technology	-0.13	1	1	81 %	78 %
140	Number of HTML Comments Size	-0.13	316	42	75 %	83 %
141	Variations making whole H1 Tags Relevancy	-0.13	1	1	9 %	79 %
142	Uses Schema pricecurrency Other	-0.13	1	1	6 %	44 %
143	Exact Matches in H1 Tags Relevancy	-0.13	1	1	13 %	83 %
144	Variations Making Whole Span Tags Relevancy	-0.13	4	1	18 %	83 %
145	Number of DoFollow External Links Authority	-0.13	60	14	76 %	72 %
146	Number of Forms Technology	-0.13	17	2	55 %	74 %
147	Number of External Links Authority	-0.13	60	16	77 %	71 %
148	Number of Images without ALT Text Size	-0.13	59	11	60 %	79 %
149	Uses Schema aggregaterating Other	-0.13	1	1	11 %	57 %
150	Number of LinkedIn Pages Authority	-0.13	20	1	28 %	69 %
151	Variations in H4-H6 Tags Relevancy	-0.13	66	2	18 %	78 %
152	Headings Has Question Other	-0.13	1	1	35 %	78 %
153	Number of Questions In H2 Tags Size	-0.13	6	1	22 %	78 %
154	Uses JSON-LD priceCurrency Other	-0.13	1	1	6 %	45 %
155	Uses JSON-LD name Other	-0.13	1	1	52 %	71 %
156	Uses Schema name Other	-0.13	1	1	60 %	66 %
157	Has FavIcon Technology	-0.13	1	1	74 %	75 %
158	Uses JSON-LD Offer Other	-0.13	1	1	6 %	54 %
159	Has Meta Charset Technology	-0.13	1	1	78 %	75 %
160	Variations in Meta Twitter Content Relevancy	-0.13	12	1	23 %	73 %
161	Number of Questions In H3 Tags Size	-0.13	10	1	16 %	78 %
162	Uses Schema offer Other	-0.13	1	1	7 %	54 %
163	Variations in Article Tags Relevancy	-0.13	1348	12	23 %	75 %
164	Has Meta Description Relevancy	-0.13	1	1	66 %	72 %
165	Has Privacy Policy Trust	-0.13	1	1	55 %	68 %
166	Leading Variations in H3 Tags Relevancy	-0.13	16	1	14 %	81 %
167	Uses JSON-LD Service Other	-0.13	1	1	6 %	36 %
168	Uses JSON-LD ListItem Other	-0.13	1	1	34 %	69 %
169	Has Schema Markup Relevancy	-0.13	1	1	63 %	72 %
170	Uses JSON-LD url Other	-0.13	1	1	44 %	69 %
171	Uses Schema listitem Other	-0.13	1	1	39 %	64 %
172	Number of Social Accounts Authority	-0.13	4	2	48 %	72 %
173	Uses JSON-LD AggregateRating Other	-0.13	1	1	9 %	61 %
174	Uses JSON-LD serviceType Other	-0.13	1	1	3 %	28 %
175	Has Apple Touch Icon Technology	-0.13	1	1	51 %	67 %
176	Uses Schema product Other	-0.13	1	1	8 %	50 %
177	Has Entities in H3 Tags Relevancy	-0.13	1	1	43 %	79 %
178	Uses Schema service Other	-0.13	1	1	6 %	35 %
179	Average Words Per Sentence Size	-0.13	242	34	81 %	71 %
180	Uses Schema servicetype Other	-0.13	1	1	4 %	28 %
181	Number of Email Addresses Trust	-0.13	279	5	44 %	80 %
182	Number Of Claimed Brands Other	-0.13	94	3	24 %	72 %
183	Has Form Technology	-0.13	1	1	54 %	68 %
184	Uses JSON-LD price Other	-0.12	1	1	4 %	38 %
185	Has Contact Page Trust	-0.12	1	1	65 %	68 %
186	Is Store Page Other	-0.12	1	1	47 %	67 %
187	Uses Schema item Other	-0.12	1	1	27 %	60 %
188	Uses JSON-LD Product Other	-0.12	1	1	7 %	52 %
189	Uses Schema breadcrumblist Other	-0.12	1	1	38 %	65 %
190	Uses JSON-LD item Other	-0.12	1	1	22 %	62 %
191	Uses Schema url Other	-0.12	1	1	54 %	63 %
192	Uses Schema price Other	-0.12	1	1	5 %	40 %
193	Uses Schema addressregion Other	-0.12	1	1	17 %	55 %
194	Number of Twitter Accounts Authority	-0.12	3	1	30 %	66 %
195	Uses Schema telephone Other	-0.12	1	1	19 %	57 %
196	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	34 %	69 %
197	Exact Matches in H2 Tags Relevancy	-0.12	5	1	10 %	87 %
198	Number of H4 Tags Size	-0.12	38	4	39 %	76 %
199	Has Email Trust	-0.12	1	1	43 %	69 %
200	Uses Schema postaladdress Other	-0.12	1	1	18 %	57 %

Measures 140713 SEO Factors

138991 Built-In SEO Factors

130079 On-page SEO Factors

8912 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 2025-05 previous