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	292	81 %	76 %
2	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	6 %	84 %
3	Load Time Milliseconds Performance	-0.23	29874	1458	82 %	94 %
4	Search Result Domain is .com Other	-0.22	1	1	6 %	84 %
5	Number of Top 200 Shared Factors Used Diversity	-0.22	51	36	97 %	95 %
6	Number of Top 100 Shared Factors Used Diversity	-0.22	38	27	96 %	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	72 %	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 Div Tags Relevancy	-0.19	68329	474	66 %	92 %
13	Number of Heading Tags Size	-0.19	49	21	68 %	89 %
14	Variations in P Tags Relevancy	-0.19	4557	64	56 %	93 %
15	Word Count Size	-0.19	6928	1498	82 %	92 %
16	Number of Backlinks Authority	-0.19	382197	9243	47 %	76 %
17	Number of Referring Domains Authority	-0.19	3169	146	47 %	77 %
18	Unabridged Word Count Size	-0.19	10152	1937	82 %	92 %
19	Variations in Body Tags Relevancy	-0.19	93621	666	71 %	90 %
20	Number of P Tags Size	-0.19	123	39	67 %	90 %
21	Variations in LI Tags Relevancy	-0.18	15771	67	54 %	89 %
22	Clean Text Kilobytes Size	-0.18	67	13	68 %	91 %
23	Variations in HTML Tags Relevancy	-0.18	93621	659	70 %	91 %
24	Number of Factors Used Diversity	-0.18	272	167	97 %	90 %
25	Number of Images Size	-0.18	309	29	68 %	91 %
26	Number of H2 Tags Size	-0.18	23	7	61 %	90 %
27	Number of HTML Tags Size	-0.18	2805	1017	81 %	90 %
28	Number of Distinct Entities Used Diversity	-0.18	61	25	70 %	95 %
29	Number of Do Follow Backlinks Authority	-0.18	377721	7945	43 %	76 %
30	Entities in Title Tag Relevancy	-0.18	7	2	58 %	93 %
31	Variations in H1 Tags Relevancy	-0.18	20	1	46 %	86 %
32	Variations in Search Result Document File Name Relevancy	-0.18	8	1	38 %	86 %
33	Number of H1 Tags Size	-0.18	3	1	64 %	92 %
34	Number of No Follow Backlinks Authority	-0.18	61104	1546	34 %	70 %
35	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	36 %	85 %
36	Entities in Sentences Relevancy	-0.17	1308	126	59 %	96 %
37	Number of Images with ALT Text Size	-0.17	304	20	63 %	89 %
38	Variations in H2 Tags Relevancy	-0.17	280	4	40 %	89 %
39	Entities in the HTML Tag Relevancy	-0.17	1436	129	64 %	95 %
40	Search Result Number of Dirs in Path Other	-0.17	3	2	72 %	81 %
41	Term Frequency Relevancy	-0.17	6	3	70 %	90 %
42	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	38 %	86 %
43	Number of Includes Technology	-0.17	68	25	76 %	80 %
44	Number of DoFollow Links Authority	-0.17	614	130	74 %	90 %
45	Entities in H2 Tags	-0.17	46	6	44 %	96 %
46	Number of HTTPS Links Authority	-0.17	623	132	74 %	90 %
47	Number of Links Authority	-0.17	624	133	74 %	90 %
48	Number of Internal Links Authority	-0.17	619	120	73 %	89 %
49	Variations in Sentences Relevancy	-0.17	8372	89	64 %	90 %
50	Variation Count in Top 30KB Relevancy	-0.17	4928	47	57 %	89 %
51	Entities in H1 Tags	-0.17	5	2	45 %	92 %
52	Variations in A Tags Relevancy	-0.17	9305	66	55 %	88 %
53	LSI Words in Sentences Relevancy	-0.17	2566	675	56 %	96 %
54	Variations in Search Result URL Path Relevancy	-0.17	10	1	41 %	86 %
55	Variations in Search Result Display URL Relevancy	-0.17	19	2	72 %	79 %
56	Variations in Search Result Link Text Relevancy	-0.17	19	2	72 %	79 %
57	Number of H3 Tags Size	-0.17	26	9	54 %	86 %
58	Variations in the Title Tag Relevancy	-0.16	23	2	58 %	84 %
59	Average Words Per Sentence Size	-0.16	372	29	72 %	87 %
60	Number of Facebook Pages Authority	-0.16	4	2	51 %	83 %
61	Has JSON-LD Schema Markup Relevancy	-0.16	1	1	48 %	82 %
62	Number of DoFollow External Links Authority	-0.16	60	13	70 %	88 %
63	Number of HTML Comments Size	-0.16	521	48	64 %	88 %
64	Entities in H3 Tags	-0.16	40	6	37 %	93 %
65	Variations in Span Tags Relevancy	-0.16	1077	15	42 %	88 %
66	Number of External Links Authority	-0.16	60	15	71 %	89 %
67	LSI Words in H2 Tags Relevancy	-0.16	91	19	47 %	93 %
68	Number Of JSON-LD Types Relevancy	-0.16	63	13	51 %	85 %
69	Number of Images without ALT Text Size	-0.16	34	9	51 %	87 %
70	Variations in Main Tags Relevancy	-0.16	40166	255	34 %	88 %
71	Variations in A Tag HREF Attributes Relevancy	-0.15	2876	50	49 %	89 %
72	Has Meta Charset Technology	-0.15	1	1	69 %	84 %
73	Leading Variations in H1 Tags Relevancy	-0.15	2	1	23 %	80 %
74	LSI Words in H1 Tags Relevancy	-0.15	10	4	48 %	95 %
75	Variations in Distinct A Tag HREF Attributes Relevancy	-0.15	1808	32	49 %	89 %
76	Variations in ALT Attributes Relevancy	-0.15	588	8	37 %	86 %
77	Variations in Script Tags Relevancy	-0.15	52712	348	58 %	87 %
78	Variations in Search Result URL Relevancy	-0.15	21	2	49 %	82 %
79	Number of Sentences Size	-0.15	612	150	78 %	87 %
80	Variations in Section Tags Relevancy	-0.15	1250	25	32 %	89 %
81	Number of CSS Includes Technology	-0.15	22	9	68 %	79 %
82	Variations in the Canonical URL Relevancy	-0.15	50	2	42 %	84 %
83	Flesch Kincaid Reading Grade Level Other	-0.15	6	1	92 %	87 %
84	Variations in OpenGraph Title Relevancy	-0.15	16	1	50 %	80 %
85	Variations in First 100 Words Relevancy	-0.15	177	6	56 %	86 %
86	Variations in Absolute URLs Relevancy	-0.15	14393	140	52 %	90 %
87	Exact Matches in the HTML Tag Relevancy	-0.15	301	11	29 %	88 %
88	Number of JavaScript Includes Technology	-0.15	46	17	76 %	79 %
89	Variations in H3 Tags Relevancy	-0.15	123	4	31 %	85 %
90	Percentage of DoFollow Links Authority	-0.15	99	79	75 %	91 %
91	Has Entities in H1 Tags Relevancy	-0.15	1	1	46 %	90 %
92	Number of Instagram Pages Authority	-0.15	23	2	39 %	77 %
93	Variations in Meta Description Relevancy	-0.15	49	2	49 %	81 %
94	Number of LinkedIn Pages Authority	-0.14	8	1	28 %	78 %
95	Leading Variations in Title Tag Relevancy	-0.14	1	1	27 %	80 %
96	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	85 %
97	Variations in Nav Tags Relevancy	-0.14	7034	82	40 %	86 %
98	Number of Forms Technology	-0.14	10	2	45 %	82 %
99	LSI Words in Title Tag Relevancy	-0.14	15	5	59 %	90 %
100	Number of Questions In Headings Size	-0.14	7	2	33 %	84 %
101	Clean Keyword Density in the HTML Tag Relevancy	-0.14	203	6	61 %	77 %
102	Uses JSON-LD name Other	-0.14	1	1	48 %	81 %
103	Has Entities in H2 Tags Relevancy	-0.14	1	1	45 %	90 %
104	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	81 %
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	Number of US Phone Numbers Trust	-0.14	249	9	34 %	83 %
108	Variations in OpenGraph Description Relevancy	-0.14	45	2	45 %	79 %
109	Has Privacy Policy Trust	-0.14	1	1	56 %	74 %
110	Is Home Page Other	-0.14	1	1	17 %	39 %
111	Inline CSS Kilobytes Size	-0.14	189	59	63 %	87 %
112	Variation Density in Top 30KB Relevancy	-0.14	310	6	54 %	80 %
113	Entities in Meta Description Tag Relevancy	-0.14	19	3	50 %	90 %
114	Number of Facebook Accounts Authority	-0.14	2	1	24 %	79 %
115	Has US Phone Number Trust	-0.14	1	1	35 %	74 %
116	Search Result Uses HTTPS Other	-0.14	1	1	81 %	87 %
117	LSI Words in H3 Tags Relevancy	-0.14	97	20	40 %	91 %
118	TF/IDF Relevancy	-0.14	2	1	52 %	87 %
119	Leading Variations in H2 Tags Relevancy	-0.14	22	1	19 %	84 %
120	Number of Social Accounts Authority	-0.14	8	2	37 %	81 %
121	Has Form Technology	-0.14	1	1	44 %	78 %
122	Number of Social Pages Authority	-0.14	25	4	58 %	82 %
123	Headings Has Question Other	-0.14	1	1	34 %	80 %
124	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	11 %	77 %
125	Variations making whole H1-H6 Tags Relevancy	-0.13	3	1	12 %	78 %
126	Title Word Count Size	-0.13	28	8	79 %	74 %
127	Exact Matches in H1-H6 Tags Relevancy	-0.13	8	1	18 %	87 %
128	Number of H4 Tags Size	-0.13	23	4	31 %	83 %
129	Title Length Size	-0.13	100	51	79 %	75 %
130	Uses JSON-LD url Other	-0.13	1	1	44 %	80 %
131	Has Meta Viewport Technology	-0.13	1	1	79 %	82 %
132	Number of Absolute URLs Authority	-0.13	872	272	81 %	81 %
133	Has Canonical URL Authority	-0.13	1	1	68 %	75 %
134	Number of Prices Size	-0.13	565	101	65 %	81 %
135	Uses Schema organization Other	-0.13	1	1	31 %	75 %
136	Uses JSON-LD Organization Other	-0.13	1	1	28 %	76 %
137	Number of Questions Size	-0.13	247	15	64 %	78 %
138	LSI Words in Meta Description Tag Relevancy	-0.13	23	9	49 %	91 %
139	Page Size Kilobytes Size	-0.13	767	341	80 %	74 %
140	Number Of Claimed Brands Other	-0.13	60	2	22 %	81 %
141	Has Entities in H3 Tags Relevancy	-0.13	1	1	37 %	87 %
142	Number of Twitter Accounts Authority	-0.13	5	1	19 %	73 %
143	Variations in Footer Tags Relevancy	-0.13	6817	36	31 %	84 %
144	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	80 %
145	Uses JSON-LD description Other	-0.13	1	1	37 %	75 %
146	Title Tag Has Entities Relevancy	-0.13	1	1	58 %	87 %
147	Variations in Strong Tags Relevancy	-0.13	289	4	23 %	82 %
148	Meta Description Length Size	-0.13	456	116	64 %	76 %
149	Exact Matches in Sentences Relevancy	-0.13	37	3	20 %	88 %
150	Uses JSON-LD ListItem Other	-0.13	1	1	30 %	77 %
151	Has Meta Robots Other	-0.13	1	1	24 %	75 %
152	Has Terms of Service Trust	-0.13	1	1	40 %	69 %
153	Inline JavaScript Kilobytes Size	-0.13	534	140	75 %	64 %
154	Has Contact Page Trust	-0.12	1	1	57 %	71 %
155	Word Count in Meta Description Size	-0.12	65	19	64 %	78 %
156	Variations making whole A Tags Relevancy	-0.12	115	2	22 %	80 %
157	Uses Schema product Other	-0.12	1	1	8 %	49 %
158	Number of Questions In H3 Tags Size	-0.12	4	1	17 %	81 %
159	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	77 %
160	Has Google Verify Technology	-0.12	1	1	18 %	72 %
161	Variations Making Whole Span Tags Relevancy	-0.12	5	1	16 %	84 %
162	Has Schema Markup Relevancy	-0.12	1	1	60 %	72 %
163	Uses Schema logo Other	-0.12	1	1	12 %	64 %
164	Is Article Page Other	-0.12	1	1	38 %	71 %
165	Uses JSON-LD logo Other	-0.12	1	1	11 %	65 %
166	Uses JSON-LD Product Other	-0.12	1	1	7 %	50 %
167	Search Result URL Length Size	-0.12	93	62	96 %	59 %
168	Exact Matches in Top 30KB Relevancy	-0.12	14	2	16 %	85 %
169	Has OpenGraph Image Relevancy	-0.12	1	1	53 %	71 %
170	Variations Making Whole LI Tags Relevancy	-0.12	7	1	18 %	81 %
171	Number of Email Addresses Trust	-0.12	22	4	38 %	80 %
172	Has Meta Description Relevancy	-0.12	1	1	63 %	74 %
173	Entities in H4 Tags	-0.12	21	2	16 %	88 %
174	Uses Schema addresslocality Other	-0.12	1	1	16 %	61 %
175	Has HREF Lang Technology	-0.12	1	1	15 %	69 %
176	Has Apple Touch Icon Technology	-0.12	1	1	46 %	71 %
177	Variations in I Tags Relevancy	-0.12	568	6	17 %	78 %
178	Number of H5 Tags Size	-0.12	9	2	15 %	78 %
179	Exact Matches in Title Tag Relevancy	-0.12	1	1	16 %	83 %
180	Uses JSON-LD streetAddress Other	-0.12	1	1	15 %	61 %
181	Number of HREF Lang Tags Size	-0.12	46	3	13 %	78 %
182	Is Category Page Other	-0.12	1	1	15 %	68 %
183	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	74 %
184	Uses JSON-LD FAQPage Other	-0.12	1	1	9 %	64 %
185	Uses Schema faqpage Other	-0.12	1	1	10 %	65 %
186	Uses JSON-LD addressLocality Other	-0.12	1	1	15 %	62 %
187	Uses Schema name Other	-0.12	1	1	56 %	72 %
188	Uses Schema streetaddress Other	-0.12	1	1	15 %	61 %
189	Uses Schema postaladdress Other	-0.12	1	1	16 %	62 %
190	Uses Schema aggregaterating Other	-0.12	1	1	8 %	63 %
191	Search Result Summary Length Size	-0.12	161	152	97 %	64 %
192	Uses Schema answer Other	-0.12	1	1	10 %	67 %
193	Uses JSON-LD Answer Other	-0.12	1	1	9 %	66 %
194	Uses Schema question Other	-0.12	1	1	10 %	66 %
195	Uses JSON-LD postalCode Other	-0.12	1	1	14 %	61 %
196	Uses Schema state Other	-0.12	1	1	3 %	16 %
197	Uses Schema postalcode Other	-0.12	1	1	15 %	61 %
198	Uses JSON-LD Question Other	-0.12	1	1	10 %	66 %
199	Uses JSON-LD PostalAddress Other	-0.12	1	1	15 %	63 %
200	Uses Schema url Other	-0.12	1	1	52 %	66 %

Measures 150618 SEO Factors

148896 Built-In SEO Factors

139694 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