200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 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 LSI Words Used Diversity	-0.24	975	290	81 %	75 %
2	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	6 %	84 %
3	Load Time Milliseconds Performance	-0.22	29874	1446	82 %	94 %
4	Search Result Domain is .com Other	-0.22	1	1	6 %	84 %
5	Number of Top 200 Shared Factors Used Diversity	-0.21	51	36	97 %	95 %
6	Number of Top 100 Shared Factors Used Diversity	-0.21	38	27	97 %	96 %
7	Number of Top 50 Shared Factors Used Diversity	-0.21	16	11	96 %	94 %
8	Number of Unique Variations Used Diversity	-0.2	20	6	73 %	91 %
9	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	8	54 %	90 %
10	Variations in H1-H6 Tags Relevancy	-0.2	409	9	55 %	90 %
11	Variations in H1 and H2 Tags Relevancy	-0.19	287	5	53 %	91 %
12	Variations in P Tags Relevancy	-0.19	4557	67	57 %	92 %
13	Variations in Div Tags Relevancy	-0.19	68329	496	66 %	92 %
14	Number of Heading Tags Size	-0.19	49	21	68 %	89 %
15	Word Count Size	-0.19	6928	1490	82 %	92 %
16	Variations in Body Tags Relevancy	-0.18	93621	694	71 %	90 %
17	Unabridged Word Count Size	-0.18	10152	1932	82 %	92 %
18	Variations in LI Tags Relevancy	-0.18	15771	71	54 %	89 %
19	Number of Backlinks Authority	-0.18	382197	9157	47 %	76 %
20	Number of P Tags Size	-0.18	123	38	67 %	89 %
21	Variations in HTML Tags Relevancy	-0.18	93621	687	70 %	92 %
22	Number of Referring Domains Authority	-0.18	3169	148	47 %	76 %
23	Clean Text Kilobytes Size	-0.18	67	13	68 %	91 %
24	Number of Factors Used Diversity	-0.18	272	167	97 %	90 %
25	Number of Distinct Entities Used Diversity	-0.18	61	25	70 %	95 %
26	Number of H2 Tags Size	-0.18	23	7	61 %	90 %
27	Number of Images Size	-0.18	309	29	68 %	90 %
28	Variations in H1 Tags Relevancy	-0.18	20	1	47 %	86 %
29	Number of HTML Tags Size	-0.18	2805	1016	82 %	90 %
30	Entities in Title Tag Relevancy	-0.18	7	2	58 %	93 %
31	Variations in Search Result Document File Name Relevancy	-0.18	8	1	39 %	86 %
32	Number of Do Follow Backlinks Authority	-0.18	377721	7943	43 %	75 %
33	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.17	32	2	36 %	84 %
34	Number of H1 Tags Size	-0.17	3	1	64 %	92 %
35	Entities in Sentences Relevancy	-0.17	1308	125	59 %	95 %
36	Variations in H2 Tags Relevancy	-0.17	280	4	40 %	89 %
37	Term Frequency Relevancy	-0.17	6	3	70 %	90 %
38	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	38 %	86 %
39	Entities in the HTML Tag Relevancy	-0.17	1436	127	64 %	95 %
40	Number of No Follow Backlinks Authority	-0.17	61104	1527	34 %	70 %
41	Number of Images with ALT Text Size	-0.17	304	20	63 %	89 %
42	Search Result Number of Dirs in Path Other	-0.17	3	2	72 %	82 %
43	Number of Includes Technology	-0.17	68	25	76 %	79 %
44	Entities in H2 Tags	-0.17	46	6	44 %	95 %
45	Variations in Sentences Relevancy	-0.17	8372	92	64 %	91 %
46	Number of DoFollow Links Authority	-0.17	614	131	74 %	89 %
47	Variation Count in Top 30KB Relevancy	-0.17	4928	49	58 %	89 %
48	Number of HTTPS Links Authority	-0.17	623	132	74 %	89 %
49	Number of Links Authority	-0.17	624	133	74 %	90 %
50	Entities in H1 Tags	-0.17	5	2	45 %	92 %
51	Number of Internal Links Authority	-0.17	619	120	73 %	89 %
52	Variations in Search Result URL Path Relevancy	-0.17	10	1	41 %	85 %
53	Variations in Search Result Display URL Relevancy	-0.17	19	2	73 %	79 %
54	Variations in Search Result Link Text Relevancy	-0.17	19	2	73 %	79 %
55	LSI Words in Sentences Relevancy	-0.17	2378	666	56 %	96 %
56	Variations in A Tags Relevancy	-0.17	9305	69	55 %	88 %
57	Variations in the Title Tag Relevancy	-0.17	23	2	58 %	84 %
58	Number of H3 Tags Size	-0.16	26	9	54 %	85 %
59	Average Words Per Sentence Size	-0.16	172	29	72 %	86 %
60	Number of Facebook Pages Authority	-0.16	4	2	51 %	84 %
61	Has JSON-LD Schema Markup Relevancy	-0.16	1	1	49 %	82 %
62	Number of HTML Comments Size	-0.16	521	48	64 %	88 %
63	Number of DoFollow External Links Authority	-0.16	60	13	70 %	87 %
64	Variations in Span Tags Relevancy	-0.16	1077	15	42 %	88 %
65	Entities in H3 Tags	-0.16	40	6	37 %	93 %
66	Number of External Links Authority	-0.16	60	15	71 %	88 %
67	LSI Words in H2 Tags Relevancy	-0.16	91	19	47 %	94 %
68	Variations in Main Tags Relevancy	-0.16	40166	267	34 %	88 %
69	Number Of JSON-LD Types Relevancy	-0.16	63	13	51 %	85 %
70	Number of Images without ALT Text Size	-0.15	34	9	51 %	87 %
71	Variations in A Tag HREF Attributes Relevancy	-0.15	2876	52	49 %	89 %
72	Leading Variations in H1 Tags Relevancy	-0.15	2	1	23 %	80 %
73	Variations in Distinct A Tag HREF Attributes Relevancy	-0.15	1808	33	49 %	89 %
74	LSI Words in H1 Tags Relevancy	-0.15	10	4	48 %	95 %
75	Variations in Script Tags Relevancy	-0.15	52712	361	58 %	87 %
76	Has Meta Charset Technology	-0.15	1	1	69 %	85 %
77	Variations in ALT Attributes Relevancy	-0.15	588	8	38 %	86 %
78	Variations in Search Result URL Relevancy	-0.15	21	2	50 %	82 %
79	Variations in the Canonical URL Relevancy	-0.15	50	2	42 %	84 %
80	Number of Sentences Size	-0.15	612	149	78 %	87 %
81	Variations in OpenGraph Title Relevancy	-0.15	16	1	50 %	80 %
82	Variations in First 100 Words Relevancy	-0.15	177	6	56 %	86 %
83	Number of CSS Includes Technology	-0.15	22	9	69 %	78 %
84	Variations in Section Tags Relevancy	-0.15	1250	25	32 %	89 %
85	Flesch Kincaid Reading Grade Level Other	-0.15	6	1	92 %	87 %
86	Variations in Absolute URLs Relevancy	-0.15	14393	146	53 %	90 %
87	Number of JavaScript Includes Technology	-0.15	46	17	76 %	78 %
88	Exact Matches in the HTML Tag Relevancy	-0.15	301	12	29 %	88 %
89	Variations in Meta Description Relevancy	-0.14	49	2	49 %	82 %
90	Percentage of DoFollow Links Authority	-0.14	99	79	75 %	91 %
91	Clean Keyword Density in the HTML Tag Relevancy	-0.14	203	6	61 %	78 %
92	LSI Words in Title Tag Relevancy	-0.14	15	5	59 %	90 %
93	Variations in H3 Tags Relevancy	-0.14	123	4	31 %	85 %
94	Number of Forms Technology	-0.14	10	2	45 %	82 %
95	Has Entities in H1 Tags Relevancy	-0.14	1	1	46 %	90 %
96	Leading Variations in Title Tag Relevancy	-0.14	1	1	27 %	81 %
97	Number of LinkedIn Pages Authority	-0.14	8	1	28 %	78 %
98	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	86 %
99	Variations in Nav Tags Relevancy	-0.14	7034	85	40 %	86 %
100	Number of Instagram Pages Authority	-0.14	23	2	39 %	77 %
101	Uses JSON-LD name Other	-0.14	1	1	49 %	81 %
102	Has Entities in H2 Tags Relevancy	-0.14	1	1	45 %	89 %
103	Number of US Phone Numbers Trust	-0.14	249	9	34 %	83 %
104	Number of Questions In Headings Size	-0.14	7	2	33 %	84 %
105	Search Result Domain Length Size	-0.14	24	16	81 %	82 %
106	Search Result Host Length Size	-0.14	24	16	81 %	82 %
107	Variation Density in Top 30KB Relevancy	-0.14	310	6	54 %	81 %
108	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	81 %
109	Variations in OpenGraph Description Relevancy	-0.14	45	2	45 %	80 %
110	Is Home Page Other	-0.14	1	1	17 %	38 %
111	Has Privacy Policy Trust	-0.14	1	1	56 %	74 %
112	Inline CSS Kilobytes Size	-0.14	189	59	63 %	87 %
113	Number of Facebook Accounts Authority	-0.14	2	1	24 %	79 %
114	Has US Phone Number Trust	-0.14	1	1	35 %	75 %
115	Leading Variations in H2 Tags Relevancy	-0.14	22	1	19 %	84 %
116	TF/IDF Relevancy	-0.14	2	1	52 %	88 %
117	Entities in Meta Description Tag Relevancy	-0.14	19	3	50 %	90 %
118	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	12 %	78 %
119	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	11 %	77 %
120	Search Result Uses HTTPS Other	-0.14	1	1	81 %	86 %
121	Has Form Technology	-0.14	1	1	45 %	78 %
122	LSI Words in H3 Tags Relevancy	-0.14	97	20	40 %	91 %
123	Number of Social Accounts Authority	-0.14	8	2	37 %	81 %
124	Number of Social Pages Authority	-0.14	25	4	58 %	81 %
125	Title Word Count Size	-0.13	28	8	79 %	74 %
126	Headings Has Question Other	-0.13	1	1	34 %	79 %
127	Exact Matches in H1-H6 Tags Relevancy	-0.13	8	1	18 %	87 %
128	Uses JSON-LD url Other	-0.13	1	1	44 %	80 %
129	Number of H4 Tags Size	-0.13	23	4	31 %	83 %
130	Has Meta Viewport Technology	-0.13	1	1	79 %	82 %
131	Title Length Size	-0.13	100	51	79 %	75 %
132	Number of Absolute URLs Authority	-0.13	872	271	81 %	81 %
133	Uses Schema organization Other	-0.13	1	1	31 %	75 %
134	Has Canonical URL Authority	-0.13	1	1	68 %	75 %
135	Number of Prices Size	-0.13	565	101	65 %	81 %
136	LSI Words in Meta Description Tag Relevancy	-0.13	23	9	49 %	91 %
137	Uses JSON-LD Organization Other	-0.13	1	1	28 %	75 %
138	Number of Questions Size	-0.13	247	15	64 %	78 %
139	Variations in Footer Tags Relevancy	-0.13	6817	38	31 %	84 %
140	Number Of Claimed Brands Other	-0.13	60	2	22 %	81 %
141	Page Size Kilobytes Size	-0.13	767	341	80 %	74 %
142	Variations in Strong Tags Relevancy	-0.13	289	4	23 %	82 %
143	Title Tag Has Entities Relevancy	-0.13	1	1	58 %	87 %
144	Has Entities in H3 Tags Relevancy	-0.13	1	1	37 %	87 %
145	Uses JSON-LD description Other	-0.13	1	1	37 %	75 %
146	Uses JSON-LD ListItem Other	-0.13	1	1	30 %	76 %
147	Number of Twitter Accounts Authority	-0.12	5	1	19 %	73 %
148	Meta Description Length Size	-0.12	456	116	64 %	76 %
149	Variations making whole A Tags Relevancy	-0.12	115	2	23 %	80 %
150	Number of Questions In H2 Tags Size	-0.12	3	1	22 %	81 %
151	Has Meta Robots Other	-0.12	1	1	24 %	75 %
152	Exact Matches in Sentences Relevancy	-0.12	37	3	20 %	88 %
153	Word Count in Meta Description Size	-0.12	65	19	64 %	78 %
154	Has Contact Page Trust	-0.12	1	1	57 %	72 %
155	Has Terms of Service Trust	-0.12	1	1	40 %	70 %
156	Uses Schema product Other	-0.12	1	1	8 %	48 %
157	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	77 %
158	Inline JavaScript Kilobytes Size	-0.12	534	141	76 %	65 %
159	Variations Making Whole Span Tags Relevancy	-0.12	5	1	16 %	84 %
160	Has Schema Markup Relevancy	-0.12	1	1	60 %	71 %
161	Uses JSON-LD logo Other	-0.12	1	1	11 %	64 %
162	Uses Schema logo Other	-0.12	1	1	12 %	64 %
163	Has Google Verify Technology	-0.12	1	1	18 %	72 %
164	Variations Making Whole LI Tags Relevancy	-0.12	7	1	18 %	81 %
165	Number of Questions In H3 Tags Size	-0.12	4	1	17 %	80 %
166	Variations in I Tags Relevancy	-0.12	568	6	17 %	78 %
167	Number of Email Addresses Trust	-0.12	22	4	38 %	80 %
168	Is Article Page Other	-0.12	1	1	39 %	71 %
169	Has OpenGraph Image Relevancy	-0.12	1	1	53 %	70 %
170	Uses JSON-LD Product Other	-0.12	1	1	7 %	50 %
171	Uses Schema addresslocality Other	-0.12	1	1	16 %	61 %
172	Exact Matches in Top 30KB Relevancy	-0.12	14	2	16 %	85 %
173	Entities in H4 Tags	-0.12	21	2	16 %	88 %
174	Search Result URL Length Size	-0.12	93	62	96 %	60 %
175	Has Meta Description Relevancy	-0.12	1	1	63 %	73 %
176	Number of H5 Tags Size	-0.12	9	2	15 %	78 %
177	Has HREF Lang Technology	-0.12	1	1	15 %	69 %
178	Number of HREF Lang Tags Size	-0.12	46	3	13 %	77 %
179	Has Apple Touch Icon Technology	-0.12	1	1	46 %	72 %
180	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	74 %
181	Search Result Summary Length Size	-0.12	161	152	97 %	65 %
182	Exact Matches in Title Tag Relevancy	-0.12	1	1	16 %	83 %
183	Uses JSON-LD streetAddress Other	-0.12	1	1	15 %	62 %
184	Uses Schema sku Other	-0.12	1	1	5 %	26 %
185	Uses JSON-LD addressLocality Other	-0.12	1	1	15 %	62 %
186	Is Category Page Other	-0.12	1	1	16 %	68 %
187	Uses Schema postaladdress Other	-0.12	1	1	16 %	62 %
188	Uses Schema aggregaterating Other	-0.12	1	1	9 %	62 %
189	Uses Schema name Other	-0.12	1	1	56 %	72 %
190	Uses Schema state Other	-0.12	1	1	3 %	17 %
191	Uses Schema streetaddress Other	-0.12	1	1	15 %	61 %
192	Uses Schema telephone Other	-0.12	1	1	17 %	64 %
193	Uses JSON-LD sku Other	-0.12	1	1	5 %	26 %
194	Uses JSON-LD postalCode Other	-0.12	1	1	15 %	61 %
195	Uses Schema postalcode Other	-0.12	1	1	15 %	61 %
196	Uses JSON-LD PostalAddress Other	-0.12	1	1	15 %	64 %
197	Has Meta Twitter Card Authority	-0.12	1	1	51 %	61 %
198	Number of Nofollow Links Authority	-0.12	18	3	21 %	78 %
199	Uses Schema url Other	-0.12	1	1	52 %	67 %
200	Variations in Button Tags Relevancy	-0.12	5433	32	10 %	84 %

Measures 150607 SEO Factors

148885 Built-In SEO Factors

139683 On-page SEO Factors

9202 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

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TOP SEO Factors for 2026-05 previous